US20140102120A1 - Absorption cooling for aircraft trolleys and compartments - Google Patents

Absorption cooling for aircraft trolleys and compartments Download PDF

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Publication number
US20140102120A1
US20140102120A1 US14/051,478 US201314051478A US2014102120A1 US 20140102120 A1 US20140102120 A1 US 20140102120A1 US 201314051478 A US201314051478 A US 201314051478A US 2014102120 A1 US2014102120 A1 US 2014102120A1
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US
United States
Prior art keywords
trolley
cooling
galley
conductive plate
thermal conductive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/051,478
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English (en)
Inventor
Jean-Paul Libis
Franck Masset
Yannick Brunaux
Andreas Hoogeveen
Fredric Muyu
Patrice Tochon
Jean Francois Fourmigue
Francois Boudehenn
Delphine Bourdon
Stephane Colasson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Cabin Germany GmbH
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Safran Cabin Netherlands NV
Original Assignee
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Driessen Aerospace Group NV
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Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, Driessen Aerospace Group NV filed Critical Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority to US14/051,478 priority Critical patent/US20140102120A1/en
Publication of US20140102120A1 publication Critical patent/US20140102120A1/en
Assigned to COMMISSARIAT A I'ENERGIE ATOMIQUE ET AUX ENERGIE ALTERNATIVES reassignment COMMISSARIAT A I'ENERGIE ATOMIQUE ET AUX ENERGIE ALTERNATIVES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOUDEHENN, FRANCOIS, BOURDON, Delphine, COLASSON, STEPHANE, FOURMIGUE, JEAN FRANCOIS, TOCHON, PATRICE
Assigned to COMMISSARIAT A I'ENERGIE ATOMIQUE ET AUX ENERGIE ALTERNATIVES reassignment COMMISSARIAT A I'ENERGIE ATOMIQUE ET AUX ENERGIE ALTERNATIVES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOURDON, Delphine, COLASSON, STEPHANE, FOURMIGUE, JEAN FRANCOIS, TOCHON, PATRICE, BOUDEHENN, FRANCOIS
Assigned to DRIESSEN AEROSPACE GROUP NV reassignment DRIESSEN AEROSPACE GROUP NV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOOGEVEEN, Andreas
Assigned to DRIESSEN AEROSPACE GROUP NV reassignment DRIESSEN AEROSPACE GROUP NV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SELL GMBH
Assigned to DRIESSEN AEROSPACE GROUP NV reassignment DRIESSEN AEROSPACE GROUP NV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INTERTECHNIQUE
Assigned to DRIESSEN AEROSPACE GROUP NV reassignment DRIESSEN AEROSPACE GROUP NV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SELL GMBH
Assigned to INTERTECHNIQUE reassignment INTERTECHNIQUE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRUNAUX, Yannick
Assigned to SELL GMBH reassignment SELL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MUYU, Fredric
Assigned to SELL GMBH reassignment SELL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MUYU, Fredric
Assigned to DRIESSEN AEROSPACE GROUP NV reassignment DRIESSEN AEROSPACE GROUP NV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOOGEVEEN, Andreas
Assigned to DRIESSEN AEROSPACE GROUP NV reassignment DRIESSEN AEROSPACE GROUP NV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INTERTECHNIQUE
Assigned to INTERTECHNIQUE reassignment INTERTECHNIQUE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MASSET, Franck
Assigned to INTERTECHNIQUE reassignment INTERTECHNIQUE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MASSET, Franck
Assigned to INTERTECHNIQUE reassignment INTERTECHNIQUE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIBIX, JEAN-PAUL
Assigned to INTERTECHNIQUE reassignment INTERTECHNIQUE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRUNAUX, Yannick
Assigned to INTERTECHNIQUE reassignment INTERTECHNIQUE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Libis, Jean-Paul
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/04—Galleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
    • B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
    • B64D2013/0603—Environmental Control Systems
    • B64D2013/0629—Environmental Control Systems with subsystems for cooling food, catering or special loads

Definitions

  • Embodiments of the present invention relate generally to improved cooling systems and methods for use on aircraft trolleys and compartments.
  • Aircraft trolleys are used to chill and maintain the temperature of food and various other items that are to be served on-board an aircraft.
  • the trolleys are generally chilled via an airflow from an air chiller or compressor that is directed over the items in the trolley.
  • the trolley has an opening in the back that can be aligned with a cool air blower that causes air to flow into the trolley and around the food and beverage items contained therein. This configuration can make it difficult to move and interchange the trolleys. Improvements to these cooling systems would be beneficial.
  • FIG. 1 shows a side cross-sectional view of a trolley cooling system.
  • FIG. 2 shows a side cross-section view of an alternate trolley cooling system.
  • FIG. 3 shows a schematic of the trolley cooling systems of FIGS. 1 and 2 .
  • FIG. 4 shows a top plan view of an alternate trolley cooling system.
  • FIG. 5 shows a schematic of the trolley cooling system of FIG. 4 .
  • Absorption cooling uses a heat source to drive the cooling system.
  • an absorption refrigerator is a refrigerator that uses a heat source (such as a solar source, a kerosene-fueled flame, or waste heat from factories) to provide the energy needed to drive the cooling system.
  • a heat source such as a solar source, a kerosene-fueled flame, or waste heat from factories.
  • the vapor absorption cycle using water-ammonia systems was widely used, but upon development of the vapor compression cycle, it lost much of its use.
  • Absorption cooling technology has not been used for air conditioning or chilling inside aircraft.
  • the present inventors have determined that if an appropriate heat source could be provided, the use of absorption cooling on-board aircraft or other vehicles could be a viable alternative to the cooling that is provided by air chillers or compressors in order to recycle the heat and to reduce noise from the traditional cooling systems. Replacing an electric air chiller with an absorption cooler can also reduce electricity loads.
  • Embodiments of the present invention thus provide absorption cooling systems for trolleys and other containers in aircraft or other vehicle galleys.
  • the waste heat used to power the cooling system is provided from a fuel cell, which produces heat as one its by-products.
  • Fuel cell technology has been contemplated by the current assignee and its related companies for powering more and more aircraft systems, particularly various galley (and lavatory) systems, because it is a clean and efficient power source.
  • the primary way to make fuel cell technology efficient is by using the fuel cell by-products (water, heat, and oxygen depleted air) in addition to the energy created that is created by the fuel cell.
  • One way to use the heat created is by delivering the heat to an absorptive cooling system. It should be understood that the heat may be provided from other aircraft systems, such as waste heat from one or more of the on-board ovens, from the aircraft engines, from the water system, or any other appropriate source.
  • a system 10 for absorptive cooling an aircraft trolley 12 or other compartment for use on board a passenger transport vehicle As shown in FIG. 1 , a thermal conductive plate 14 is positioned on the back 16 of the trolley 12 , and another thermal conductive plate 18 is positioned on the back of the galley trolley bay 20 (the space into which the trolley 12 is stored) for thermal connection.
  • a fan 22 may be provided inside the trolley in order to generate air distribution through the trolley and over the items contained therein. This is an example of an “air over trolley.”
  • the thermal plates transfer the cold temperature that is generated by the absorption cooler to the trolley interior. Contact between the plates 14 , 18 creates a thermal connection for a cooling exchange between the plates.
  • the thermal plates 14 , 18 are mounted in such a way that they fully contact (or can otherwise be adjusted to fully contact) or substantially fully contact the other thermal plate to have maximum heat (cold) transfer. The transfer is conducted via thermal conductivity in the plates.
  • FIG. 1 also illustrates that a heat source 24 is positioned behind the monument back wall 20 and associated with the absorption cooling system 10 . Waste heat from the heat source 24 is used to power the absorption cooling system 10 .
  • the heat generated may be a by-product from a fuel cell used to power one or more aircraft systems.
  • a cooling fluid circuit 26 is also provided behind the back wall of the trolley bay 20 .
  • the coolant circuit 26 is associated with the thermal plate 18 of the back wall, as well as with the absorption cooling unit. As waste heat (with a temperature generally between about 50-90 ° C., and in some instances, between 60-80° C.) is transformed by the absorption cooler, the coolant circuit 26 delivers the cooled fluid to the thermal plate 18 . Its contact with the thermal plate 14 of the trolley transfers the cold to the trolley 12 . Fan 22 helps recirculate cooled air inside the trolley 12 .
  • the coolant circuit 26 may route cooled fluid to any number of galley bay locations such that multiple trolleys may be cooled at a time.
  • An adjustment system may be provided to ensure contact between the plates 14 and 18 . Because the trolley has clearance and is moveable, an adjustment system may assure correct alignment of trolley to allow contact between the plates.
  • FIG. 2 shows an embodiment with a duct 28 that has a fan 29 for air distribution or recirculation through the trolley 12 .
  • Current installations also have ducting that may be connected to the air-chiller, which contains the cooling parts and a fan to recirculate the air through the ducting and the trolley (referred to as an “air through trolley”).
  • the trolleys are provided with thermal conductivity via plate 14 , such that there is no need for electricity for the internal fan 22 as shown in FIG. 1 .
  • there are holes present on the back of the trolley through will cold air may be forced into and through the trolley.
  • the fan can recirculate the air, creating a more steady atmosphere for the food/drinks inside the trolley. This is an example of an “air through trolley.”
  • the schematic of FIG. 3 shows how waste heat is delivered to an absorption cooler that uses the heat to drive the cooling system.
  • the cooled fluid may take a first path and be delivered to a compartment to be chilled, as necessary. It may also be delivered to the fluid coolant circuit to cool a galley wall thermal plate 18 .
  • the coolant circuit 26 may use any appropriate cooling fluid (such as refrigeration fluid, cooled air, cooled water, or any other fluid).
  • any other form of heat/cold transportation can be used to deliver cooling fluid between the plates. Non-limiting examples include the thermal conductivity described, the use of heating pipes in contact, cooled air generation, and so forth.
  • thermal plate 18 on the monument aligns with a thermal plate 14 that is mounted on the back of the trolley to generate the desired cooling effect.
  • This system uses less power than an air chiller, it uses waste heat and thus improves efficiency, it provides cooling directly in the area where it is needed, and it provides a modular principle that can be used with each trolley inside the trolley bay.
  • FIGS. 4 and 5 Another embodiment that uses absorptive cooling technology for chilling trolleys is shown in FIGS. 4 and 5 .
  • This concept provides an envelope of cooled air around the trolley, rather than using a thermal plate directly positioned on the trolley.
  • the trolley cooling system includes thermal cooling plates 30 on the galley stowage area, and they may be included on the top (the view of FIG. 4 shows a top view so the top plate is not shown), back wall 36 , as well as on the divider wall panels 38 between trolley storage areas.
  • the cooling fluid from the absorption cooler may be pumped through these plates 30 , much like how the cooling fluid circuit cools the monument plate 18 described above.
  • Providing a plate 30 on the divider wall panel 38 allows the sides of two trolley carts 12 to be cooled with a single plate. This adds to efficiency of the system as the heat (cold) transfer happens on both sides. This creates a cooled or refrigerated area into which the trolley can be positioned.
  • a door or other cooled air containment feature may be added to the front of the trolley bay stowage area, but is not necessary as cooled air is generally desirable in the aircraft galley and cabin areas.
  • the trolleys may include internal fans (as discussed above) to help move and recirculate cooled air through and over the items in the trolley to improve cooling efficiency and to create an even temperature range.
  • External fans 40 may also be mounted to the back of the galley stowage space and are provided in order to circulate air over the trolley(s) to support the natural recirculation of air and to keep the temperature even in the trolley bay.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
US14/051,478 2012-10-11 2013-10-11 Absorption cooling for aircraft trolleys and compartments Abandoned US20140102120A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/051,478 US20140102120A1 (en) 2012-10-11 2013-10-11 Absorption cooling for aircraft trolleys and compartments

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261712368P 2012-10-11 2012-10-11
US201261712370P 2012-10-11 2012-10-11
US14/051,478 US20140102120A1 (en) 2012-10-11 2013-10-11 Absorption cooling for aircraft trolleys and compartments

Publications (1)

Publication Number Publication Date
US20140102120A1 true US20140102120A1 (en) 2014-04-17

Family

ID=49885318

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US14/051,478 Abandoned US20140102120A1 (en) 2012-10-11 2013-10-11 Absorption cooling for aircraft trolleys and compartments

Country Status (5)

Country Link
US (1) US20140102120A1 (fr)
EP (1) EP2906470A1 (fr)
CN (1) CN105102324A (fr)
CA (1) CA2887386A1 (fr)
WO (1) WO2014057470A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180134392A1 (en) * 2016-11-17 2018-05-17 Airbus Operations Gmbh Cooling arrangement for a galley and method for operating such a cooling arrangement
US11358724B2 (en) * 2015-02-27 2022-06-14 Airbus Operations Gmbh System for manufacturing a kitchen arrangement, kitchen arrangement and an aircraft
EP4289736A1 (fr) * 2022-06-08 2023-12-13 B/E Aerospace, Inc. Procédé pour acheminer un micro-refroidisseur dans une baie de chariot ou une autre enceinte pour une circulation d'air optimale
EP4289737A1 (fr) * 2022-06-08 2023-12-13 B/E Aerospace, Inc. Micro-refroidisseur à haut rendement
EP4317851A1 (fr) * 2022-08-03 2024-02-07 Hamilton Sundstrand Corporation Chaleur perdue utilisant un système de réfrigération par absorption pour la régulation climatique et/ou le refroidissement de systèmes électriques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11072426B2 (en) * 2015-11-23 2021-07-27 The Boeing Company Galley system of an aircraft

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614091A (en) * 1984-05-30 1986-09-30 Martin Frank Process and device for cooling in containers
US4969509A (en) * 1988-04-16 1990-11-13 Deutsche Lufthansa Aktiengesellschaft Airplane
US5074496A (en) * 1990-02-19 1991-12-24 Societe Nationale Industrielle Et Aerospatiale System for supplying an enclosure with trolleys or similar
US5228313A (en) * 1989-09-14 1993-07-20 Sanyo Electric Co., Ltd. Low-temperature storage case
EP0655592A1 (fr) * 1993-11-26 1995-05-31 DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung Dispositif pour le refroidissement des produits alimentations, en particulier dans un avion
US20080116773A1 (en) * 2005-03-04 2008-05-22 Driessen Aerospace Group N.V. Device for Accomodating Objects, Trolley, Method for Manufacturing a Trolley, as Well as Transport Means
US20100193629A1 (en) * 2009-01-30 2010-08-05 The Boeing Company Localized utility power system for aircraft

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US2990694A (en) * 1958-07-10 1961-07-04 Frank Bruce Refrigeration apparatus
DE4227965C2 (de) * 1992-08-22 1995-06-22 Daimler Benz Aerospace Airbus Kühlsystem in Luftfahrzeugen
DE4308144C1 (de) * 1993-03-15 1994-10-27 Deutsche Aerospace Airbus Servierwagen an Bord eines Flugzeuges
US6054229A (en) * 1996-07-19 2000-04-25 Ztek Corporation System for electric generation, heating, cooling, and ventilation
DE19952523A1 (de) * 1999-10-30 2001-05-10 Eads Airbus Gmbh Anordnung zur Kühlluftversorgung von Küchenservicewagen
KR20110074970A (ko) * 2008-07-31 2011-07-05 조지아 테크 리서치 코포레이션 마이크로스케일 열 또는 열 및 물질 전달 시스템

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614091A (en) * 1984-05-30 1986-09-30 Martin Frank Process and device for cooling in containers
US4969509A (en) * 1988-04-16 1990-11-13 Deutsche Lufthansa Aktiengesellschaft Airplane
US5228313A (en) * 1989-09-14 1993-07-20 Sanyo Electric Co., Ltd. Low-temperature storage case
US5074496A (en) * 1990-02-19 1991-12-24 Societe Nationale Industrielle Et Aerospatiale System for supplying an enclosure with trolleys or similar
EP0655592A1 (fr) * 1993-11-26 1995-05-31 DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung Dispositif pour le refroidissement des produits alimentations, en particulier dans un avion
US20080116773A1 (en) * 2005-03-04 2008-05-22 Driessen Aerospace Group N.V. Device for Accomodating Objects, Trolley, Method for Manufacturing a Trolley, as Well as Transport Means
US20100193629A1 (en) * 2009-01-30 2010-08-05 The Boeing Company Localized utility power system for aircraft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
English MachineTranslation of EP 0655592 A1, attached *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11358724B2 (en) * 2015-02-27 2022-06-14 Airbus Operations Gmbh System for manufacturing a kitchen arrangement, kitchen arrangement and an aircraft
US20180134392A1 (en) * 2016-11-17 2018-05-17 Airbus Operations Gmbh Cooling arrangement for a galley and method for operating such a cooling arrangement
US10155589B2 (en) * 2016-11-17 2018-12-18 Airbus Operations Gmbh Cooling arrangement for a galley and method for operating such a cooling arrangement
EP4289736A1 (fr) * 2022-06-08 2023-12-13 B/E Aerospace, Inc. Procédé pour acheminer un micro-refroidisseur dans une baie de chariot ou une autre enceinte pour une circulation d'air optimale
EP4289737A1 (fr) * 2022-06-08 2023-12-13 B/E Aerospace, Inc. Micro-refroidisseur à haut rendement
EP4317851A1 (fr) * 2022-08-03 2024-02-07 Hamilton Sundstrand Corporation Chaleur perdue utilisant un système de réfrigération par absorption pour la régulation climatique et/ou le refroidissement de systèmes électriques

Also Published As

Publication number Publication date
EP2906470A1 (fr) 2015-08-19
CN105102324A (zh) 2015-11-25
CA2887386A1 (fr) 2014-04-17
WO2014057470A1 (fr) 2014-04-17

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